unix

package standard library
go1.23.3 Latest Latest
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Published: Nov 6, 2024 License: BSD-3-Clause Imports: 3 Imported by: 0

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Index

Constants

View Source
const (
	AT_EACCESS          = 0x200
	AT_FDCWD            = -0x64
	AT_REMOVEDIR        = 0x200
	AT_SYMLINK_NOFOLLOW = 0x100

	UTIME_OMIT = 0x3ffffffe
)
View Source
const (
	R_OK = 0x4
	W_OK = 0x2
	X_OK = 0x1

	// NoFollowErrno is the error returned from open/openat called with
	// O_NOFOLLOW flag, when the trailing component (basename) of the path
	// is a symbolic link.
	NoFollowErrno = noFollowErrno
)

Variables

This section is empty.

Functions

func CopyFileRange added in go1.15

func CopyFileRange(rfd int, roff *int64, wfd int, woff *int64, len int, flags int) (n int, err error)

func Eaccess added in go1.20

func Eaccess(path string, mode uint32) error

func Fcntl added in go1.21.0

func Fcntl(fd int, cmd int, arg int) (int, error)

func Fstatat added in go1.12

func Fstatat(dirfd int, path string, stat *syscall.Stat_t, flags int) error

func GetRandom

func GetRandom(p []byte, flags GetRandomFlag) (n int, err error)

GetRandom calls the getrandom system call.

func HasNonblockFlag added in go1.20.5

func HasNonblockFlag(flag int) bool

func IsNonblock added in go1.11

func IsNonblock(fd int) (nonblocking bool, err error)

func KernelVersion added in go1.20

func KernelVersion() (major, minor int)

KernelVersion returns major and minor kernel version numbers, parsed from the syscall.Uname's Release field, or 0, 0 if the version can't be obtained or parsed.

Currently only implemented for Linux.

func Openat added in go1.12

func Openat(dirfd int, path string, flags int, perm uint32) (int, error)

func PidFDOpen added in go1.23.0

func PidFDOpen(pid, flags int) (uintptr, error)

func PidFDSendSignal added in go1.22.0

func PidFDSendSignal(pidfd uintptr, s syscall.Signal) error

func RecvfromInet4 added in go1.18

func RecvfromInet4(fd int, p []byte, flags int, from *syscall.SockaddrInet4) (int, error)

func RecvfromInet6 added in go1.18

func RecvfromInet6(fd int, p []byte, flags int, from *syscall.SockaddrInet6) (n int, err error)

func RecvmsgInet4 added in go1.18

func RecvmsgInet4(fd int, p, oob []byte, flags int, from *syscall.SockaddrInet4) (n, oobn int, recvflags int, err error)

func RecvmsgInet6 added in go1.18

func RecvmsgInet6(fd int, p, oob []byte, flags int, from *syscall.SockaddrInet6) (n, oobn int, recvflags int, err error)

func SendmsgNInet4 added in go1.18

func SendmsgNInet4(fd int, p, oob []byte, to *syscall.SockaddrInet4, flags int) (n int, err error)

func SendmsgNInet6 added in go1.18

func SendmsgNInet6(fd int, p, oob []byte, to *syscall.SockaddrInet6, flags int) (n int, err error)

func SendtoInet4 added in go1.18

func SendtoInet4(fd int, p []byte, flags int, to *syscall.SockaddrInet4) (err error)

func SendtoInet6 added in go1.18

func SendtoInet6(fd int, p []byte, flags int, to *syscall.SockaddrInet6) (err error)

func Tcsetpgrp added in go1.23.0

func Tcsetpgrp(fd int, pgid int32) (err error)

func Unlinkat added in go1.12

func Unlinkat(dirfd int, path string, flags int) error

Types

type GetRandomFlag

type GetRandomFlag uintptr

GetRandomFlag is a flag supported by the getrandom system call.

const (
	// GRND_NONBLOCK means return EAGAIN rather than blocking.
	GRND_NONBLOCK GetRandomFlag = 0x0001

	// GRND_RANDOM means use the /dev/random pool instead of /dev/urandom.
	GRND_RANDOM GetRandomFlag = 0x0002
)

type SiginfoChild added in go1.23.0

type SiginfoChild struct {
	Signo int32

	Pid    int32
	Uid    uint32
	Status int32
	// contains filtered or unexported fields
}

SiginfoChild is a struct filled in by Linux waitid syscall. In C, siginfo_t contains a union with multiple members; this struct corresponds to one used when Signo is SIGCHLD.

NOTE fields are exported to be used by TestSiginfoChildLayout.

func (*SiginfoChild) WaitStatus added in go1.23.0

func (s *SiginfoChild) WaitStatus() (ws syscall.WaitStatus)

WaitStatus converts SiginfoChild, as filled in by the waitid syscall, to syscall.WaitStatus.

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